Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 117 insertions, 0 deletions

diff --git a/kernel/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h b/kernel/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h
new file mode 100644
index 000000000..b0aafe8db
--- /dev/null
+++ b/kernel/drivers/infiniband/hw/usnic/usnic_ib_qp_grp.h
@@ -0,0 +1,117 @@
+/*
+ * Copyright (c) 2013, Cisco Systems, Inc. All rights reserved.
+ *
+ * This program is free software; you may redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ *
+ */
+
+#ifndef USNIC_IB_QP_GRP_H_
+#define USNIC_IB_QP_GRP_H_
+
+#include <linux/debugfs.h>
+#include <rdma/ib_verbs.h>
+
+#include "usnic_ib.h"
+#include "usnic_abi.h"
+#include "usnic_fwd.h"
+#include "usnic_vnic.h"
+
+/*
+ * The qp group struct represents all the hw resources needed to present a ib_qp
+ */
+struct usnic_ib_qp_grp {
+	struct ib_qp				ibqp;
+	enum ib_qp_state			state;
+	int					grp_id;
+
+	struct usnic_fwd_dev			*ufdev;
+	struct usnic_ib_ucontext		*ctx;
+	struct list_head			flows_lst;
+
+	struct usnic_vnic_res_chunk		**res_chunk_list;
+
+	pid_t					owner_pid;
+	struct usnic_ib_vf			*vf;
+	struct list_head			link;
+
+	spinlock_t				lock;
+
+	struct kobject				kobj;
+};
+
+struct usnic_ib_qp_grp_flow {
+	struct usnic_fwd_flow		*flow;
+	enum usnic_transport_type	trans_type;
+	union {
+		struct {
+			uint16_t	port_num;
+		} usnic_roce;
+		struct {
+			struct socket	*sock;
+		} udp;
+	};
+	struct usnic_ib_qp_grp		*qp_grp;
+	struct list_head		link;
+
+	/* Debug FS */
+	struct dentry			*dbgfs_dentry;
+	char				dentry_name[32];
+};
+
+static const struct
+usnic_vnic_res_spec min_transport_spec[USNIC_TRANSPORT_MAX] = {
+	{ /*USNIC_TRANSPORT_UNKNOWN*/
+		.resources = {
+			{.type = USNIC_VNIC_RES_TYPE_EOL,	.cnt = 0,},
+		},
+	},
+	{ /*USNIC_TRANSPORT_ROCE_CUSTOM*/
+		.resources = {
+			{.type = USNIC_VNIC_RES_TYPE_WQ,	.cnt = 1,},
+			{.type = USNIC_VNIC_RES_TYPE_RQ,	.cnt = 1,},
+			{.type = USNIC_VNIC_RES_TYPE_CQ,	.cnt = 1,},
+			{.type = USNIC_VNIC_RES_TYPE_EOL,	.cnt = 0,},
+		},
+	},
+	{ /*USNIC_TRANSPORT_IPV4_UDP*/
+		.resources = {
+			{.type = USNIC_VNIC_RES_TYPE_WQ,	.cnt = 1,},
+			{.type = USNIC_VNIC_RES_TYPE_RQ,	.cnt = 1,},
+			{.type = USNIC_VNIC_RES_TYPE_CQ,	.cnt = 1,},
+			{.type = USNIC_VNIC_RES_TYPE_EOL,	.cnt = 0,},
+		},
+	},
+};
+
+const char *usnic_ib_qp_grp_state_to_string(enum ib_qp_state state);
+int usnic_ib_qp_grp_dump_hdr(char *buf, int buf_sz);
+int usnic_ib_qp_grp_dump_rows(void *obj, char *buf, int buf_sz);
+struct usnic_ib_qp_grp *
+usnic_ib_qp_grp_create(struct usnic_fwd_dev *ufdev, struct usnic_ib_vf *vf,
+			struct usnic_ib_pd *pd,
+			struct usnic_vnic_res_spec *res_spec,
+			struct usnic_transport_spec *trans_spec);
+void usnic_ib_qp_grp_destroy(struct usnic_ib_qp_grp *qp_grp);
+int usnic_ib_qp_grp_modify(struct usnic_ib_qp_grp *qp_grp,
+				enum ib_qp_state new_state,
+				void *data);
+struct usnic_vnic_res_chunk
+*usnic_ib_qp_grp_get_chunk(struct usnic_ib_qp_grp *qp_grp,
+				enum usnic_vnic_res_type type);
+static inline
+struct usnic_ib_qp_grp *to_uqp_grp(struct ib_qp *ibqp)
+{
+	return container_of(ibqp, struct usnic_ib_qp_grp, ibqp);
+}
+#endif /* USNIC_IB_QP_GRP_H_ */